Locations & account

The Online Plots are run from evp.starp.bnl.gov, typically under the 'operator' account.  In the Control Room, the computer named rts01 is the "standard" location to have them displayed.  The standard scripts should be stored in ~operator/pplots/.

Running

Running the presenter

First check The OnlinePlots icon on rts01 in the Control Room looks like this: (if you ave a better png image for this purpose, send it to Wayne Betts). It launches a small script to start the Presenter (you will need the operator account password).

Using the icon effectively does the following steps for you (which you can do manually from any node):

1. Log into evp.starp.bnl.gov as operator. Ask your shift leader for the password to do so.
   • ssh evp.starp.bnl.gov -l operator
2. Change to the ~operator/pplots/ directory
   • cd ~/pplots/
3. Start the histogram presenter
   • root4starN livePresenter.C

Running the Server (only necessary if a Server is not already running on evp, which should be an unusual event)

1. Log into evp.starp.bnl.gov as user operator. Ask your shift leader for the password to do so.
   • ssh evp.starp.bnl.gov -l operator
2. Change to the folder ~operator/pplots
   • cd ~operator/pplots
3. Make sure the server is not already running. No harm should be caused if you attempt to run multiple servers at the time, other than log files being filled up.
   • ps x | grep liveServer.C
   • kill <process number>
4. Start the server with logging:
   • nohup root4starN -q -b liveServer.C >>& server.out &
5. In normal run mode, there will not be any gui or output. Check that the server is running.
   • ps -ux | grep liveServer.C

For details about the available options, see Expert Modes